运行中的电动机声音突然发生变化，电流表指示值上升或降低到零，可能是什么原因？

移完架支架后，将各操作手把都打回（）位。

配对阅读，阅读I栏中几个人物的信息，并从II栏中选出适合他们的选项，并将其字母编号填写在题前括号内。

I

小题1: Amy comes from America and she likes Beijing Opera. She wants to go to the theater to see Beijing Opera.

小题2: Tina is in No.3 Middle School. Basketball is her favorite sport. She wants to find someone to play basketball with her after school.

小题3: Li Hong hardly does any sports so she is weak. She wants to become strong and healthy.

小题4: Andrew is going to Beijing for vacation. He is looking for someone who can be his tour guide on the Internet.

小题5: Yang Ming likes animals and he wants to go to the zoo this weekend.

II

A．Emily is in No.3 Middle School and she likes basketball very much. She plays basketball every day after school.

B．If you like seeing Beijing Opera, you can go to Anhua Theater. It is a big theater. You can enjoy Beijing Opera there.

C．You can get a lot of information on the Internet. But remember, surfing the Internet too long is bad for your health.

D．If you want to become strong and healthy, you should do sports. It’s a good idea to join a sports club.E. There are many kinds of animals in Beijing Zoo. If you like animals, you can go there.

F. Zhang Hua is good at swimming. He swims twice a week. He is very strong and athletic. You can learn to swim from him.

G. Wang Jiang was born in Beijing and he is familiar with Beijing. He wants to work as a tour guide during the summer vacation.

下列叙述中，错误的是

A．内存储器一般由ROM和RAM组成

B．RAM中的存储的数据一旦断电就全部丢失

C．CPU可以直接存取硬盘中的数据

D．存储在ROM中的数据断电后也不会消失

在VBA代码调试过程中，能够显示出所有在当前过程中变量声明及变量值信息的是______。

A．快速监视窗口

B．监视窗口

C．立即窗口

D．本地窗口

40岁以上发病的皮肌炎患者须高度警惕（）

A.恶性肿瘤

B.系统性红斑狼疮

C.类风湿关节炎

D.心脏病

E.糖尿病